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June 10, 1958 o. M. PHlLlPP TENS TRANSFER MECHANISM FOR TOTAL'IZERS 3 Sheets-Sheet 1 Filed July 13, 1953 HIS ATTORNEYS June 10, 1958 o. M. PHILIPP TENS TRANSEER MECHANISM FOR TOTALIZERS 3 Sheets-Sheet 2 Filed July 13, 1953 I INVENTOR OTTO MAX PHlLlPP HIS ATTORNEYS June 10, 1958 o. M. PHILIPP mus TRANSFER MECHANISM FOR TOTALIZERS 3 Sheeis-Sheet 3 Filed July 15, 1953 INVENTOR OTTO MAX PHILIPP HIS ATTORNEYS United States Patent 2,838,241 Patented June 10, 1958 iiice 2,838,241 TENS TRANSFER MECHANISM FOR TOTALIZERS Otto Max Philipp, Augsburg, Germany, assignor to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application July 13, E53, Serial No. 367,692 Claims priority, application Great Britain July 16, 1952 7 Claims. (Cl. 235-138) This invention relates to tens transfer mechanism for totalizers, such, for example, as are used in cash registers and similar accounting machines.

It is usual to provide a long tooth, or abutment, in the nine position of each totalizer wheel, which, as the wheel passes from 9 to 0, trips a normally locked tens transfer member associated with the next higher wheel, the tripped tens transfer members then being actuated, seriatim, so that the related wheels are ad vanced by one step to make the tens transfer. All the tripped tens transfer members are subsequently restored to normal locked positions so as to be ready for any possible tens transfers during the next machine operation.

Such tens transfer mechanisms are usually of a complicated nature, involving a number of relatively fragile parts. Moreover they suffer from the main disadvantage that the movement of any tripped tens transfer member to its actuating position is effected under spring action. Thus there exists the possibility that, should any spring become weak or broken, the tens transfer member will not be moved, resulting in an incorrect total in the counter.

The present invention has for its object to provide a tens transfer mechanism of simple and compact construction.

The invention comprises a cash register or similar accounting machine, including a totalizer, actuators for the totalizer, mechanism for engaging the totalizer with, and disengaging it from, the actuators, a tens transfer tooth on each totalizer wheel, a tripping member which is tripped by the tens transfer tooth as the totalizer is moved from 9 to 0, said tripping member directly imparting a preparatory movement to a tens transfer member for the totalizer wheel of next higher order during said tripping movement, and an actuating member which thereafter imparts a further movement to the tens transfer member, after the totalizer is disengaged, whereby the tens transfer member engages directly with its related totalizer wheel to advance the latter by one step to effect the tens transfer.

The above, and other subsidiary features of the present invention, as applied, by way of example only, to one manner of carrying it into effect, will now be described and are illustrated in the accompanying drawings.

In the drawings:

Fig. l is a detail side view showing the tens transfer mechanism in its normal untripped position which is taken substantially across line AA of Fig. 4.

Fig. 2 is mainly illustrative of the progressive movement of the transfer member from its tripped position to effect the entry of one unit into the higher order totalizer wheel.

Fig. 3 is a side view illustrating the positions assumed by the tripping and transfer members when the former is tripped by the long tooth of the related lower order totalizer wheel. The transfer member shown, is the next higher member to that shown in Fig. 1.

Fig. 4 is a plan view of the tens transfer mechanism for one denominational order, and part of the tens transfer mechanism for the adjacent higher and lower orders the totalizer wheel for the higher order being omitted.

Fig. 5 is a diagrammatic view showing the helical arrangement of radial slots in an actuating shaft for the tripped tens transfer members whereby the latter are successively engaged to effect transfers in sequence from the lowest to the highest order. This figure also includes, adjacent each slot, a cross-section of the shaft taken midway through the slot.

In the arrangements illustrated, a sries of totalizer wheels is freely mounted on a shaft 1 supported by the totalizer frame (not shown) in any well known manner, and each wheel is provided with a long tooth for the purpose of eiiecting tens transfers when the totalizer wheels pass from 9 to 0. In the figures, a tens totalizer wheel is represented at 2 having a long transfer tooth 2a. The hundreds wheel 3 is visible only in Fig. 3, being hidden by the tens" wheel in Figs. 1 and 2, its long transfer tooth being shown at 3a in Figs. 1, 2 and 3. The totalizer wheels are adapted to be actuated by the usual actuators (not shown) for the entry of amounts thereon in any well known manner.

Freely mounted on a shaft 4, also supported in the totalizer frame, is a series of transfer trip pawls 5, one for each totalizer wheel, and each having a nose 6 which lies in the path of movement of the long tooth of its related totalizer wheel.

Connected to the trip pawl 5 by means of a bail 7 is a pawl 8, also freely mounted on the shaft 4, and having an upper finger 9 and a lower laterally extending finger iii. The lower finger if; is adapted to cooperate with a tens transfer star-wheel 11 carried by a hub freely supported on a shaft 12, the several star-wheels being spaced apart by sleeves 13, upon which the upper fingers of the respective pawls 8 rest.

A shaft 14, rotatably supported in machine side frames (not shown) has therein radial follower borings 15 (see particularly Fig. 5) disposed in a helical manner.

Closely embracing and riveted to the shaft 14, is a sleeve 16, having slots 17 cut through the wall thereof which are disposed, with relation to the borings 15, as to permit an initial counter-clockwise tripping movement of any star-Wheel 11, as described later, and then to cooperate with the tripped star-wheels 11 so that they will be positively actuated one after the other, commencing with the lowest denomination, in a counter-clockwise direction.

A shaft 18, secured between side frames of the machine, not shown, carries a series of pawls 19, one located adjacent each star-whel 11, and spaced apart by sleeves 2%. Each pawl 19 has an upper lug 21, and an offset lug 22, the upper lug 21 projecting into the path of a top righthand point (as seen in Figs. 1 and 4) of the associated star-Wheel 11 to prevent any accidental effective counterclockwise movement of the latter. The lower lug 22 of the pawl 19 is engaged by one end of a torsion spring 23 wound around the sleeve 13 on the shaft 12 and having its other end cooperating with a groove in a stud 24 mounted on the pawl 5, thereby normally maintaining the upper finger 9 of the pawl 5 in contact with the sleeve 13 on the shaft 12, and maintaining the lower lug 22 of the pawl 19 in contact with the sleeve 16, as best shown in Fig. 1.

Also pivotally mounted on the shaft 18 is a series of aligning pawls 25, each having a nose 26 cooperating with the teeth of a related totalizer wheel. The aligning pawls 25 are normally held in the position shown in Fig. 1 by means of compression springs 27 anchored between rear extensions 28 of the pawls 25 and a comb 29 mounted on the totalizer frame by means of bolts 30.

As each wheel is rotated clockwise on item-entering and tens transferring operations, the associated nose 26 of the pawl 25 ratchets in and out of the teeth of the wheel, so as resiliently to hold the latter in its adjusted position.

When the tens totalizer wheel 2 rotates clockwise from 9 to position, the long tooth 2a contacts the nose :6 of the pawl 5, rocking the latter counter-clockwise about the shaft 4 against the action of the spring 23, from the position shown in Fig. l to that shown in Fig. 3. During this counter-clockwise movement of the pawl 5 the laterally extending finger of the pawl 8 contacts the downwardly extending tooth of the hundreds transfer star-wheel 11 rocking the latter counter-clockwise about the sleeve 13 on the shaft 12, so that said tooth now enters the associated boring in the sleeve 16.

During the counter-clockwise tripping movement of the star-wheel 11, the uppermost tooth will cam past the lug 21 of the pawl 19, rocking the latter temporarily clockwise about the shaft 18, said pawl 19 thereafter being immediately returned clockwise by the tensioned spring 23 so that the lug 22 again rests on the sleeve 16. When the tooth 2a of the totalizer wheel passes beyond the nose 6 of the pawl 5 upon the completion of the clockwise setting movement of the totalizer wheel, as seen in Fig. 2, the spring 23 restores the pawls 5 and 8 clockwise to the position shown in Fig. l, the upper cam surface on the lug 21 contacts the under surface of the related tooth of the star-wheel 11 to maintain the latter in its tripped position at this time.

After the totalizer has been disengaged from the actuators in known manner, a known cam and driving mechanism not shown, moves the shaft 14 and sleeve 16 clockwise through approximately 80, whereupon the lefthand edge bounding the related slot 17 in the sleeve 16 will contact a flat surface of the tooth of the star-wheel 11 and thereby rotate the star-wheel until it engages a tooth of the hundreds totalizer wheel, as indicated in full lines (Fig. 2). The continued rotation of the starwheel to the position shown in dotted lines, causes the hundreds totalizer wheel to move through one tooth space, that is, from position 3a to 3b to effect the tens transfer. Finally, on the completion of the clockwise movement of the shaft 14, the star-wheel is rotated until its tooth passes out of the slot 17 and lies at a tangent to the periphery of sleeve 16, as indicated in broken lines in Fig. 2, thus assuming the position indicated in Fig. 1 wherein another point of the star-wheel 11 is in position to be moved into the slot 17 when the pawl 5 is next tripped.

The shaft 14 now makes a free counter-clockwise return movement, the angle of movement of said shaft being indicated by the dot and dash lines in Fig. 2, and its directions of movement being indicated by the arrows.

As previously stated, the arrangement of the slots 17 in the sleeve 16 and the follower borings in the shaft 14 is such that the additional counter-clockwise movement of the star-wheels 11 to transfer one unit to the next higher order, will be progressively made, starting from the lowest order and proceeding progressively until the highest order star-wheel 11 has been actuated.

From the foregoing, it will be clear that the tens transfer wheel 11 is first positively moved to a preparatory position, and is then positively actuated to make the tens transfer to the next higher order totalizer wheel.

I claim:

1. In a tens transfer mechanism for a cash register or similar accounting machine, the combination of a totalizer consisting of a plurality of totalizer wheels, a tens transfer tooth on each totalizer wheel, a tens transfer member for each totalizer wheel, a tripping member which is tripped by the tens transfer tooth as the totalizer wheel is moved from 9 to 0, said tripping member directly imparting a preparatory movement to the tens transfer member for the totalizer wheel of next higher order in a transfer entry direction during said tripping movement, and an actuating member which thereafter imparts a further movement to the tens transfer member in said transfer entry direction, whereby the tens transfer member engages directly with its related totalizer wheel to advance the latter by one step to effect the tens transfer.

2. A machine according to claim 1', wherein the tens transfer member is a rotary member rotated stepwise directly by the tripping member, at each tripping movement, successively to position actuating portions of the rotary member into the path of the actuating member.

3. A machine according to claim 2, including a cylindrical actuating member having helically arranged radial apertures therein, one for each rotary member, and a series of teeth on each rotary member, one of said teeth being positioned, upon the stepwise rotation of the rotary member, so as to be received within its related aperture, so that actuation of the cylindrical actuating member further rotates the rotary members, seriatim, through the cooperation of the apertures with the teeth.

4. A machine according to claim 3, wherein the cylindrical actuating member comprises an apertured sleeve pinned to a shaft having radial follower borings, corresponding to the apertures, for receiving the apexes of the teeth during the actuation of the cylindrical member.

5. A machine according to claim 3, wherein the tripping member comprises a pawl engageable by the tens transfer tooth, and there is provided a second pawl secured to the tripping pawl and having a laterally extending finger which cooperates with the teeth on the related rotary member to impart a preparatory rotation thereto.

6. A machine according to claim 3, including a locating pawl for the rotary member, a pair of offset projections on the pawl, and a torsion spring whose ends cooperate, respectively, with the tripping member and one of the projections on the locating pawl, so as to maintain the tripping member in cooperative relationship with the tripping tooth and to cause the other projection of the locating pawl to locate the rotary member both in its partial and fully actuated positions.

7. A machine according to claim 3 wherein the teeth on the rotary member each have a flat surface arranged so as to cooperate with an effective edge of the related aperture during the further rotation of the rotary member, and to lie at a tangent to the periphery of the cylindrical member upon the completion of the tens transfer operation.

References Cited in the file of this patent UNITED STATES PATENTS 

